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Reinstate CARGO_PRIMARY_PACKAGE #7205

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Reinstate CARGO_PRIMARY_PACKAGE #7205

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Put back CARGO_PRIMARY_PACKAGE
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@nhynes
nhynes committed Aug 2, 2019
commit ac2746cc8135f909cba6163886d7e850274e597e
3 changes: 3 additions & 0 deletions src/cargo/core/compiler/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -180,6 +180,9 @@ fn rustc<'a, 'cfg>(
exec: &Arc<dyn Executor>,
) -> CargoResult<Work> {
let mut rustc = prepare_rustc(cx, &unit.target.rustc_crate_types(), unit)?;
if cx.is_primary_package(unit) {
rustc.env("CARGO_PRIMARY_PACKAGE", "1");
}
let build_plan = cx.bcx.build_config.build_plan;

let name = unit.pkg.name().to_string();
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